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https://issues.apache.org/jira/browse/HDFS-2948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13207867#comment-13207867
]
Todd Lipcon commented on HDFS-2948:
-----------------------------------
exception from the jenkins build:
{code|
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.stopActiveServices(NameNode.java:977)
at
org.apache.hadoop.hdfs.server.namenode.ha.ActiveState.exitState(ActiveState.java:70)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:585)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:550)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:527)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:837)
at
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:744)
at
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:650)
at
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:551)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:267)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:95)
at
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:249)
at
org.apache.hadoop.hdfs.server.namenode.TestCheckpoint.__CLR3_0_22lez331fi9(TestCheckpoint.java:150)
at
org.apache.hadoop.hdfs.server.namenode.TestCheckpoint.testNameDirError(TestCheckpoint.java:133)
{code}
> HA: NN throws NPE during shutdown if it fails to startup
> --------------------------------------------------------
>
> Key: HDFS-2948
> URL: https://issues.apache.org/jira/browse/HDFS-2948
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Todd Lipcon
> Priority: Minor
> Attachments: hdfs-2948.txt
>
>
> Last night's nightly build had a bunch of NPEs thrown in NameNode.stop. Not
> sure which patch introduced the issue, but the problem is that
> NameNode.stop() is called if an exception is thrown during startup. If the
> exception is thrown before the namesystem is created, then
> NameNode.namesystem is null, and {{namesystem.stop}} throws NPE.
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